     <style>
        *
        {
            margin:0;
            padding:0;
            background-color:rgb(250,249,245);
        }
        #all
        {
            position:absolute;
            height:800px;
            width:1290px;
            /*overflow:hidden;*/
        }
        #one
        {
            padding-top:4px;
            opacity:0.96;
            position:absolute;
            height:100%;
            width:40%;
            left:-45px;
            
        }
            #nav
            {
                position:absolute;
            }
                #nav ul li
                {
                    margin:18px 0 ;
                    width:140px;
                    background-color:black;
                    padding: 4px;
                    text-align:center;
                    height:45px;
                    line-height:40px;
                    font-size:14px;
                    border-radius:15px;

                }
            a
            {
                color:white;
                font-weight:bold;
                text-decoration:none;
            }
            b
            {
                color:blue;
            }
        #two
        {
            background-color:rgb(250,249,245);
            padding:0px 40px 0px 35px;
            margin-left:260px;
            padding-left: 50px;
            height:100%;
            width:60%;
            border:3px solid black;
            overflow:scroll;
        }

        strong
        {
            color:red;
        }
        .btn
        {
            width:100px;
            height:40px;
            line-height:35px;
            border-radius:10px;
            color:white;
            background-color:blue;
        }
         em
         {
             color:red;
         }
         #nav ul #li0
            {
                background-color:greenyellow;
            }
            #nav ul li #a0
            {
                color:black;
            }
	   .title{
		  margin-bottom:12px;
	       }
        .gd{
            overflow: auto; width: 100%;position: relative;
            margin: 0 auto;
        }
    </style>